1. Institute of Sport Science & University Medical Center Göttingen, Faculty of Rehabilitation and Sports Medicine, Göttingen, Germany
2. Institute of Sports Medicine, Hannover Medical School (MHH), Hannover, Germany
3. Clinic for Hematology and Medical Oncology with Department of Stem Cell Transplantation, Göttingen Comprehensive Cancer Center, University Medical Center Göttingen, Göttingen, Germany
4. Medical Biometry and Statistical Bioinformatics, University Medical Center Göttingen, Göttingen, Germany